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Takai Y, Yamagami A, Ishikawa H. [Leber's hereditary optic neuropathy]. Rinsho Shinkeigaku 2024:cn-001924. [PMID: 38644210 DOI: 10.5692/clinicalneurol.cn-001924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Leber's hereditary optic atrophy (LHON) is a genetic optic neuropathy that is more prevalent in young males but can occur from childhood to old age. The primary cause is mitochondrial genetic mutations, which are associated with dysfunction of mitochondrial electron transport chain complex I. It manifests as acute to subacute visual impairment, often starting unilaterally but progressing to involve both eyes within weeks to months. Visual loss is severe, with many patients having corrected visual acuity below 0.1. The differential diagnosis of optic neuritis is essential, and assessments such as pupillary light reflex, fluorescein fundus angiography, and magnetic resonance imaging can be useful for differentiation. LHON should be considered as one of the differential diagnoses for optic neuritis, and collaboration between neurologists and ophthalmologists is crucial for accurate diagnosis and appropriate treatment.
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Affiliation(s)
| | | | - Hitoshi Ishikawa
- Department of Orthoptics and Visual Science, School of Allied Health Sciences, Kitazato University
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Noda Y, Takai Y, Suto T, Yamada N, Mori T, Kawai N, Kaga T, Hyodo F, Kato H, Matsuo M. Effect of X-ray tube on image quality and pancreatic ductal adenocarcinoma conspicuity in pancreatic protocol dual-energy CT. Clin Radiol 2024; 79:e554-e559. [PMID: 38453389 DOI: 10.1016/j.crad.2023.12.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 12/05/2023] [Accepted: 12/31/2023] [Indexed: 03/09/2024]
Abstract
AIM To compare the radiation dose, image quality, and conspicuity of pancreatic ductal adenocarcinoma (PDAC) in pancreatic protocol dual-energy computed tomography (CT) between two X-ray tubes mounted in the same CT machine. MATERIAL AND METHODS This retrospective study comprised 80 patients (median age, 73 years; 45 men) who underwent pancreatic protocol dual-energy CT from January 2019 to March 2022 using either old (Group A, n=41) or new (Group B, n=39) X-ray tubes mounted in the same CT machine. The imaging parameters were completely matched between the two groups, and CT data were reconstructed at 70 and 40 keV. The CT dose-index volume (CTDIvol); CT attenuation of the abdominal aorta, pancreas, and PDAC; background noise; and qualitative scores for the image noise, overall image quality, and PDAC conspicuity were compared between the two groups. RESULTS The CTDIvol was lower in Group B than Group A (7.9 versus 9.2 mGy; p<0.001). The CT attenuation of all anatomical structures at 70 and 40 keV was comparable between the two groups (p=0.06-0.78). The background noise was lower in Group B than Group A (12 versus 14 HU at 70 keV, p=0.046; and 26 versus 30 HU at 40 keV, p<0.001). Qualitative scores for image noise and overall image quality at 70 and 40 keV and PDAC conspicuity at 40 keV were higher in Group B than Group A (p<0.001-0.045). CONCLUSION The latest X-ray tube could reduce the radiation dose and improve image quality in pancreatic protocol dual-energy CT.
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Affiliation(s)
- Y Noda
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan.
| | - Y Takai
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
| | - T Suto
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
| | - N Yamada
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
| | - T Mori
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
| | - N Kawai
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
| | - T Kaga
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
| | - F Hyodo
- Department of Pharmacology, Graduate School of Medicine, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan; Center for One Medicine Innovative Translational Research (COMIT), Institute for Advanced Study, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
| | - H Kato
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
| | - M Matsuo
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
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Takai Y, Yamagami A, Iwasa M, Inoue K, Wakakura M, Takahashi T, Tanaka K. Evaluation of Steroid Pulse Therapy Responsiveness in Myelin-Oligodendrocyte Glycoprotein Antibody-Positive Optic Neuritis. Cureus 2024; 16:e56673. [PMID: 38646337 PMCID: PMC11032426 DOI: 10.7759/cureus.56673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2024] [Indexed: 04/23/2024] Open
Abstract
PURPOSE Myelin-oligodendrocyte glycoprotein antibody-positive optic neuritis (MOGON) is usually responsive to the steroid, but, for some patients, steroid pulse therapy alone may be inadequate. This study aimed to investigate the factors predicting the response to steroid pulse therapy in MOGON. METHODS This study included 17 patients (24 eyes) with MOGON, who received single steroid pulse therapy as initial treatment. Best corrected visual acuity (BCVA) and mean deviation (MD) values after treatment were examined concerning findings at onset. RESULTS No correlation was found between BCVA at onset and after treatment, but a correlation was observed between MD values at onset and after treatment (correlation coefficient 0.48, p=0.01, Spearman's rank correlation coefficient). Age, gender, duration from onset to treatment, magnetic resonance imaging findings, and optical coherence tomography findings did not affect visual function after treatment. CONCLUSIONS Severe visual field impairment at onset may indicate that additional treatment may be necessary.
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Affiliation(s)
- Yasuyuki Takai
- Department of Ophthalmology, Inouye Eye Hospital, Tokyo, JPN
| | - Akiko Yamagami
- Department of Ophthalmology, Inouye Eye Hospital, Tokyo, JPN
| | - Mayumi Iwasa
- Department of Ophthalmology, Inouye Eye Hospital, Tokyo, JPN
| | - Kenji Inoue
- Department of Ophthalmology, Inouye Eye Hospital, Tokyo, JPN
| | - Masato Wakakura
- Department of Ophthalmology, Inouye Eye Hospital, Tokyo, JPN
| | - Toshiyuki Takahashi
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, JPN
| | - Keiko Tanaka
- Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata, JPN
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Takai Y, Iwasa M, Yamagami A, Inoue K, Yasumoto R, Ishikawa H, Wakakura M. A Japanese Case of Leber's Hereditary Optic Neuropathy with the m.13051G>A Pathogenic Variant. Neuroophthalmology 2024; 48:51-55. [PMID: 38357617 PMCID: PMC10863381 DOI: 10.1080/01658107.2023.2273480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/09/2023] [Indexed: 02/16/2024] Open
Abstract
Leber's hereditary optic neuropathy (LHON) is one of the hereditary optic neuropathies and is principally caused by three frequent mitochondria deoxyribonucleic acid (DNA) pathogenic variants (m.11778 G>A, m.3460 G>A, and m.14484T>C). These pathogenic variants account for 90% of LHON cases, with rare pathogenic variants accounting for the remaining cases. We report the first Japanese case of LHON with the m.13051 G>A pathogenic variant, which is a rare primary pathogenic variant of LHON. A 24-year-old woman developed subacute visual loss in both eyes over several months. The best corrected visual acuity (BCVA) was 6/120 in her right eye (OD) and 6/7.5 in her left eye (OS). A relative afferent pupillary defect was not detected. Humphrey visual field testing revealed a central scotoma OD and a temporal paracentral scotoma OS. Fundus examination showed the presence of a pale optic disc OD and optic disc swelling with peripapillary microangiopathy OS. Orbital magnetic resonance imaging showed no abnormal findings. As the mitochondrial DNA gene testing demonstrated the m.13051 G>A pathogenic variant, the patient was diagnosed with LHON. Subsequently, her BCVA worsened to 6/600 in each eye, followed by a nearly plateau-like progression thereafter. This mutation has been primarily reported in Europe but has not yet been confirmed in the Asian region. This case also indicates the importance of examining the whole mitochondrial DNA gene for pathogenic variants in cases where one of the three major pathogenic variants has not been not detected.
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Affiliation(s)
- Yasuyuki Takai
- Department of ophthalmology, Inouye Eye Hospital, Tokyo, Japan
| | - Mayumi Iwasa
- Department of ophthalmology, Inouye Eye Hospital, Tokyo, Japan
| | - Akiko Yamagami
- Department of ophthalmology, Inouye Eye Hospital, Tokyo, Japan
| | - Kenji Inoue
- Department of ophthalmology, Inouye Eye Hospital, Tokyo, Japan
| | - Ryoma Yasumoto
- Department of Clinical Laboratory, Kitasato University Hospital, Kanagawa, Japan
| | - Hitoshi Ishikawa
- Department of Orthoptics and Visual Science, School of Allied Health Sciences, Kitazato University, Kanagawa, Japan
| | - Masato Wakakura
- Department of ophthalmology, Inouye Eye Hospital, Tokyo, Japan
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Takai Y, Yamagami A, Iwasa M, Inoue K, Wakakura M, Takahashi T, Tanaka K. Clinical Features and Prognostic Factors in Anti-Myelin Oligodendrocyte Glycoprotein Antibody Positive Optic Neuritis. Neuroophthalmology 2023; 48:134-141. [PMID: 38487356 PMCID: PMC10936654 DOI: 10.1080/01658107.2023.2287518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 11/13/2023] [Indexed: 03/17/2024] Open
Abstract
In order to review the clinical features of anti-myelin oligodendrocyte glycoprotein antibody positive optic neuritis (MOGON), we investigated the clinical characteristics, visual function, optical coherence tomography findings, and magnetic resonance imaging of 31 patients (44 eyes). MOGON was more common in middle age without sex difference and was characterised by pain on eye movement and optic disc swelling. Magnetic resonance imaging lesions tended to be long with inflammation around the optic nerve sheath; longer lesions were associated with worse visual acuities at onset. Recurrence was significantly associated with retinal nerve fibre layer thinning, and thus, it is important to reduce recurrence as much as possible.
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Affiliation(s)
- Yasuyuki Takai
- Department of Ophthalmology, Inouye Eye Hospital, Tokyo, Japan
| | - Akiko Yamagami
- Department of Ophthalmology, Inouye Eye Hospital, Tokyo, Japan
| | - Mayumi Iwasa
- Department of Ophthalmology, Inouye Eye Hospital, Tokyo, Japan
| | - Kenji Inoue
- Department of Ophthalmology, Inouye Eye Hospital, Tokyo, Japan
| | - Masato Wakakura
- Department of Ophthalmology, Inouye Eye Hospital, Tokyo, Japan
| | - Toshiyuki Takahashi
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Neurology, National Hospital Organization Yonezawa National Hospital, Yonezawa, Japan
| | - Keiko Tanaka
- Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata, Japan
- Department of Multiple Sclerosis Therapeutics, Fukushima Medical University, Fukushima, Japan
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Takaya J, Higashino H, Takaya R, Sakaguchi H, Tanoue J, Higashide T, Moriguchi H, Nakao M, Takai Y. Effect of the COVID-19 pandemic lockdown on the physique of school-age children in Japan. Ann Pediatr Endocrinol Metab 2023; 28:124-130. [PMID: 37401057 DOI: 10.6065/apem.2244228.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 02/16/2023] [Indexed: 07/05/2023] Open
Abstract
PURPOSE Schools in Japan were closed nationwide from March to May 2020 because of the coronavirus disease 2019 (COVID-19) pandemic. Many suspect that this school closure affected children's mental and physical health. We investigated changes in school-age children's physiques to determine the effects of the COVID-19 lockdown and restrictions on their health. METHODS Data were extracted from a database of school physical examinations in Osaka elementary and junior high schools for 4 consecutive years from 2018 to 2021. The following characteristics were analyzed: short stature, tall stature, underweight, mild obesity, middle grade obesity, and severe obesity. The paired Student t-test was used to compare school examination data in the prepandemic period (2018-2019), pandemic lockdown (2019-2020), and post-lockdown period (2020-2021). RESULTS Obesity rates in elementary school students aged 6-12 years, particularly in boys, were significantly higher during the lockdown than they were in 2019. After the pandemic, the tall stature rate continued to rise, while rates of short stature and underweight decreased in both sexes in 2020. In junior high school students aged 12-15 years, rates of obesity and underweight tended to decrease in 2020. However, these rates rebounded and rose in 2021 when the lockdown was lifted. CONCLUSION During the COVID-19 pandemic lockdown, elementary school students gained weight, while junior high school students lost weight. The lockdown that was implemented during the COVID-19 pandemic had an unfavorable effect on weight gain, particularly in young school-age children.
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Affiliation(s)
- Junji Takaya
- Osaka Medical Association, School Physician Section, Osaka City, Japan
| | | | - Ryuzo Takaya
- Osaka Medical Association, School Physician Section, Osaka City, Japan
| | - Hiromi Sakaguchi
- Osaka Medical Association, School Physician Section, Osaka City, Japan
| | - Jitsuo Tanoue
- Osaka Medical Association, School Physician Section, Osaka City, Japan
| | - Takashi Higashide
- Osaka Medical Association, School Physician Section, Osaka City, Japan
| | - Hisako Moriguchi
- Osaka Medical Association, School Physician Section, Osaka City, Japan
| | - Masatoshi Nakao
- Osaka Medical Association, School Physician Section, Osaka City, Japan
| | - Yasuyuki Takai
- Osaka Medical Association, School Physician Section, Osaka City, Japan
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Takai Y, Yamagami A, Iwasa M, Inoue K, Wakakura M. A Case of Herpes Zoster Ophthalmicus With Multiple Delayed Ocular Complications. Cureus 2023; 15:e37134. [PMID: 37153243 PMCID: PMC10159690 DOI: 10.7759/cureus.37134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2023] [Indexed: 04/07/2023] Open
Abstract
Herpes zoster ophthalmicus (HZO) presents a variety of ocular complications, most of which occur simultaneously as skin lesions. We report a case of HZO with delayed onset of multiple ocular complications. A 72-year-old man developed HZO, blepharitis, iritis, and conjunctivitis in the left eye, which resolved after topical ocular treatment and systemic acyclovir administration. However, six weeks after the first onset of the rash, the patient came to our hospital because of recurrent blepharitis, iritis, scleritis, conjunctivitis, eye pain, ptosis, and blurred vision in the left eye. Best corrected visual acuity (BCVA) in the left eye had decreased to hand motion, and the Goldmann visual field test showed only mild residual peripheral vision on the lateral side. Intraocular pressure showed 25 mmHg in the left eye and inflammation in the anterior chamber with paralytic mydriasis. Orbital magnetic resonance imaging (MRI) showed the contrast effects with the lacrimal gland, superior ophthalmic vein, supraorbital nerve, optic nerve, and around optic nerve sheath. The patient was diagnosed with optic neuritis, optic perineuritis, ptosis, paralytic mydriasis, trigeminal neuralgia, lacrimal gland inflammation, blepharitis, iritis, scleritis, and ocular hypertension after HZO, and three courses of steroid pulse therapy were administered. Thereafter, BCVA improved to 0.3 in the left eye, with improvement in central vision, and MRI lesions and other symptoms also improved. The patient has had no complications or recurrence of HZO. HZO can cause a variety of ocular complications. Since autoimmune mechanisms might be involved, combined immunotherapy should be considered.
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Takai Y, Inoue K. A Case of Impending Central Retinal Vein Occlusion Associated With Antiphospholipid Antibody Syndrome Complicated by Paracentral Acute Intermediate Layer Maculopathy. Cureus 2023; 15:e37256. [PMID: 37162765 PMCID: PMC10164365 DOI: 10.7759/cureus.37256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2023] [Indexed: 05/11/2023] Open
Abstract
We report a case of impending central retinal vein occlusion (CRVO) due to antiphospholipid syndrome (APS) complicated by paracentral acute middle maculopathy (PAMM). A 42-year-old man with no medical history acutely presented with blurred vision in his right eye. The best-corrected visual acuity was 20/20 in the right eye, but the Goldman visual field test showed a dark spot over the superior nasal region of the right eye. Fundus examination showed dilated and tortuous retinal veins of the right eye with delayed filling of the inferior retinal veins on fluorescein angiography. Optical coherence tomography (OCT) showed a hyperreflective lesion confined to the inner nuclear layer (INL), consistent with PAMM. After several weeks, his symptoms improved, and the dilated retinal vein and the INL hyperreflexia on OCT were reduced. Multiple positive findings for anti-cardiolipin antibodies were confirmed; therefore, he was diagnosed with APS and treated with aspirin. If the impending CRVO is associated with visual impairment, the complication of PAMM should be considered. In the presence of retinal vasculopathy without atherosclerotic factors, APS should be considered.
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Affiliation(s)
| | - Kenji Inoue
- Opthalmology, Inouye Eye Hospital, Tokyo, JPN
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Takai Y, Tobisawa S, Funai A, Komori T, Takahashi K. An Autopsy Case of Elderly Onset Brainstem Acute Disseminated Encephalomyelitis. Case Rep Neurol 2023; 15:31-40. [PMID: 36817729 PMCID: PMC9929651 DOI: 10.1159/000529180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/09/2023] [Indexed: 02/16/2023] Open
Abstract
Acute disseminated encephalomyelitis (ADEM), which is a disease that causes multifocal inflammatory demyelination of the central nervous system, occurs predominantly in children and young adults. We report an autopsy case of an elderly man with brainstem ADEM that progressed over a period of about 3 months. An 82-year-old man developed disturbance of consciousness, dysphagia, and ataxic gait over a period of about 3 months. He was admitted to another hospital for aspiration pneumonia and recovered but was transferred to our hospital due to prolonged disturbance of consciousness. The patient was able to follow simple commands but had a tendency to somnolence. In addition to meningeal stimulation signs, the patient had left-dominant upper and lower limb ataxia and right-dominant limb spasticity. Brain FLAIR/T2-weighted imaging showed high-intensity lesions from the brainstem to the middle cerebellar peduncle bilaterally, medulla oblongata and upper cervical spinal cord, and T1-weighted imaging revealed contrast-enhanced lesions in the left middle cerebellar peduncle and cervical spinal cord. Although spinal fluid examination revealed elevated proteins, other laboratory tests indicated no evidence of infection, vasculitis, collagen diseases or tumors, and anti-ganglioside, anti-AQP4 and anti-MOG antibodies were negative. After admission, the patient again developed aspiration pneumonia, which progressed to acute respiratory distress syndrome, and he died on the 15th day of hospitalization. Autopsy findings indicated acute and subacute demyelination mainly in the brainstem and cerebellum, and perivascular lymphocyte and macrophage infiltration in the areas of demyelination. A postmortem diagnosis of ADEM was made based on the generally monophasic course of the disease and the absence of regenerating myelinated sheaths. There are very few reports of elderly patients with brainstem ADEM. ADEM should be considered as a differential diagnosis in patients with brainstem encephalitis.
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Affiliation(s)
- Yasuyuki Takai
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan,Inouye eye Hospital, Tokyo, Japan
| | - Shinsuke Tobisawa
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Asuka Funai
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Takashi Komori
- Department of Laboratory Medicine and Pathology (Neuropathology), Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Kazushi Takahashi
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
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Tanito M, Takayanagi Y, Ishida A, Ichioka S, Takai Y, Kaidzu S. Linear association between aging and decreased blood thiol antioxidant activity in patients with cataract. J Clin Biochem Nutr 2023; 72:54-60. [PMID: 36777073 PMCID: PMC9899924 DOI: 10.3164/jcbn.22-66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 09/03/2022] [Indexed: 11/07/2022] Open
Abstract
We comprehensively assessed the roles of systemic redox markers by including both prooxidant and antioxidant markers in 121 Japanese subjects (mean ± SD age, 70 ± 11 years; 38 men) with no ocular pathology except age-related cataract. Serum levels of lipid peroxides, ferric-reducing activity, and thiol antioxidant activity were measured using the diacron reactive oxygen metabolite (dROM), biologic antioxidant potential (BAP), and sulfhydryl (SH) tests, respectively, using a free-radical analyzer. Univariate analyses suggested that older age, higher pulse rate, worse best-corrected visual acuity (BCVA), higher intraocular pressure, and higher cataract grade were associated with a lower SH level. Scatterplots revealed virtually linear associations between age and the SH level (estimate, -4.4 μM/year). Multivariate analyses suggested that older age, higher systolic blood pressure, and worse BCVA were associated with a lower SH level. Neither the univariate nor multivariate analyses, except between female sex and higher dROM level, were associated with the dROM or BAP level. A lower serum SH level was the driver of aging itself and age-related decline in VA due to cataract. The serum SH level may be an excellent predictor of aging status in each subject.
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Affiliation(s)
- Masaki Tanito
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan,To whom correspondence should be addressed. E-mail:
| | - Yuji Takayanagi
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan,Department of Ophthalmology, Seirei Hamamatsu General Hospital, 2-12-12 Naka-ku Sumiyoshi, Hamamatsu, Shizuoka 430-8558, Japan
| | - Akiko Ishida
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan
| | - Sho Ichioka
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan
| | - Yasuyuki Takai
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan,Department of Ophthalmology, Masuda Red Cross Hospital, I103-1 Otoyoshi, Masuda, Shimane 698-8501, Japan
| | - Sachiko Kaidzu
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan
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Takai Y, Sakuma T, Mashimo K, Inoue K, Ebihara N. A Case of Nephrotic Syndrome with Bilateral Serous Retinal Detachment and Shallow Anterior Chamber Associated with Ciliary Body Edema. Case Rep Ophthalmol 2022; 13:949-955. [DOI: 10.1159/000527039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 09/08/2022] [Indexed: 11/19/2022] Open
Abstract
Nephrotic syndrome is a disease that causes fluid retention in the body due to loss of protein in the blood, which can lead to serous retinal detachment (SRD) in the macula. We report a case of severe SRD in both eyes and angle closure due to ciliary body edema caused by nephrotic syndrome. A 57-year-old man was admitted to the Department of Nephrology in our hospital for a thorough examination of his generalized edema. He was diagnosed with nephrotic syndrome but proved to be refractory to steroid treatment. Due to distortion symptoms in both eyes on the 30th day of hospitalization, the patient was referred to our department. Best-corrected visual acuity (BCVA) was 0.8 in the right eye and 1.0 in the left eye. Slit lamp examination and anterior segmental optical coherence tomography (OCT) showed shallow anterior chambers in both eyes. Fundus and macular OCT demonstrated severe SRD in the posterior pole of both eyes. After observing the presence of hypoalbuminemia, we considered the possibility of SRD and angle closure due to ciliary edema that resulted from the leaks associated with the nephrotic syndrome. Thereafter, ocular findings improved in conjunction with systemic symptom improvements associated with ultrafiltration and low-density lipoprotein apheresis. On the 60th day of hospitalization, his BCVA improved to 1.2 in both eyes, SRD disappeared, and the anterior chamber depth normalized. This case demonstrates the importance of recognizing SRD and angle closure associated with ciliary body edema as complications linked with nephrotic syndrome.
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Sugihara K, Takai Y, Kawasaki R, Nitta K, Katai M, Kitaoka Y, Yokoyama Y, Omodaka K, Naito T, Yamashita T, Mizoue S, Iwase A, Nakazawa T, Tanito M. Comparisons between retinal vessel calibers and various optic disc morphologic parameters with different optic disc appearances: The Glaucoma Stereo Analysis Study. PLoS One 2021; 16:e0250245. [PMID: 34324508 PMCID: PMC8320981 DOI: 10.1371/journal.pone.0250245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 04/01/2021] [Indexed: 11/19/2022] Open
Abstract
The Glaucoma Stereo Analysis Study (GSAS) is a multicenter collaborative study of the characteristics of glaucomatous optic disc morphology using a stereo fundus camera. This study evaluated the retinal vessel calibers and correlations using GSAS fundus photographs between retinal vessels and 38 optic nerve head (ONH) morphologic parameters comprehensively. In all 240 eyes, the mean central retinal arteriolar equivalent (CRAE) and central retinal venular equivalent (CRVE) were 138.4 and 216.5 μm, respectively; the CRAE correlated with age, visual field scores and 19 ONH parameters and CRVE correlated with age, intraocular pressure, visual field scores and 11 ONH parameters. Among the different optic disc appearances including focal ischemia (FI) (n = 53, 22%), generalized enlargement (GE) (n = 53, 22%), myopic glaucoma (MY) (n = 112, 47%), and senile sclerosis (SS) (n = 22, 9%), the CRAE did not differ significantly; CRVE was significantly narrower in SS than in FI and MY. In FI, GE, MY, and SS disc types, CRAE correlated with 3, 14, 9, and 2 ONH parameters, respectively, and CRVE corelated with 9, 0, 12, and 6 ONH parameters, respectively. We confirmed previous observations on the effect of retinal vessel narrowing on glaucomatous changes in the ONH and visual field. The associations between retinal vessel caliber and ONH morphologic parameters vary among different optic disc appearances, suggesting different effects of vascular changes in each disc type.
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Affiliation(s)
- Kazunobu Sugihara
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo, Japan
| | - Yasuyuki Takai
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo, Japan
| | - Ryo Kawasaki
- Department of Vision Informatics, Osaka University Graduate School of Medicine, Osaka Japan
| | - Koji Nitta
- Department of Ophthalmology, Fukui-ken Saiseikai Hospital, Fukui, Japan
| | - Maki Katai
- Department of Ophthalmology, NTT Medical Center Sapporo, Sapporo, Japan
| | - Yasushi Kitaoka
- Department of Ophthalmology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Yu Yokoyama
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuko Omodaka
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | | | - Takehiro Yamashita
- Department of Ophthalmology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shiro Mizoue
- Department of Ophthalmology, Ehime University Graduate School of Medicine, Toon, Japan
| | | | - Toru Nakazawa
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masaki Tanito
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo, Japan
- * E-mail:
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Abstract
Background Sympathetic ophthalmia (SO) is a bilateral diffuse uveitis that can arise after ocular trauma or ocular surgery in the inciting eye. Pars plana vitrectomy (PPV) is one of the risk factors for SO. Several reports have described SO developing after 23- and 25-G PPV, but none have described SO occurring after 27-G PPV. We describe herein a case of SO after 27-G PPV for rhegmatogenous retinal detachment. Case presentation A 42-year-old woman presented with visual disturbance in the right eye. Best-corrected visual acuity (BCVA) was 6/200 in the right eye. Fundus examination revealed off-macula retinal detachment with retinal tears at both ends of retinal lattice degeneration at the temporal-oven peripheral retina of the right eye. We therefore performed 27-G sutureless PPV on the right eye. After 12 days, the retina was reattached, and BCVA improved to 6/30 in the right eye. Fifteen days postoperatively, she experienced headache and reduced vision in both eyes. Symptoms gradually worsened, and she visited our hospital 21 days postoperatively. BCVA was 6/30 in the right eye and 6/15 in the left eye. Slit-lamp examination revealed uveitis in the anterior chambers of both eyes, and fundus examination showed papillitis and subretinal detachment at the posterior poles of both eyes. Optical coherence tomography revealed subretinal fluid in the maculae of both eyes and fluorescein angiography showed multiple hyperfluorescent leakage sites in the retinal pigment epithelium. Cerebrospinal fluid examination showed pleocytosis and human leukocyte antigen testing showed expression of the DR04 phenotype; therefore, the patient was diagnosed with SO. She was treated with steroid therapy, and her visual disturbance subsided and the subretinal fluid improved as well. Her BCVA was 6/15 for the right eye and 6/5 for the left eye 93 days after the initial surgery. Conclusion The present case shows that even if the sclerotomy site of 27-G PPV is small, there is still a risk of SO occurring in the eyes of patients who underwent transconjunctival vitrectomy. Ophthalmologists should recognize SO as complication of 27-G PPV and carry out proper management as early as possible.
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Affiliation(s)
- Yasuyuki Takai
- Department of Ophthalmology, Juntendo University Urayasu Hospital, 2-1-1 Tomioka, Urayasu City, Chiba, 279-0021, Japan.
| | - Yoshihito Sakanishi
- Department of Ophthalmology, Juntendo University Urayasu Hospital, 2-1-1 Tomioka, Urayasu City, Chiba, 279-0021, Japan
| | - Masahiro Okamoto
- Department of Ophthalmology, Juntendo University Urayasu Hospital, 2-1-1 Tomioka, Urayasu City, Chiba, 279-0021, Japan
| | - Nobuyuki Ebihara
- Department of Ophthalmology, Juntendo University Urayasu Hospital, 2-1-1 Tomioka, Urayasu City, Chiba, 279-0021, Japan
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Norioka R, Tobisawa S, Nishigori R, Kuhara T, Yazaki M, Nagao M, Ohura T, Takai Y, Funai A, Miyamoto K, Kawata A, Takahashi K. Saccharopinuria accompanied by hyperammonemia and hypercitrullinemia presented with elderly-onset epilepsy, progressive cognitive decline, and gait ataxia. Intractable Rare Dis Res 2021; 10:126-130. [PMID: 33996359 PMCID: PMC8122307 DOI: 10.5582/irdr.2021.01003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
We report a case of saccharopinuria with hyperammonemia and hypercitrullinemia in a Japanese woman who presented with elderly-onset epilepsy, progressive cognitive decline, and gait ataxia. Blood amino acid analysis revealed an increase in citrulline, cystine, and lysine levels, and urine amino acid analysis showed increased citrulline and cystine levels. Urine metabolomics revealed an increased saccharopine level, leading to the definitive diagnosis of saccharopinuria. In western blots of liver biopsy samples, normal citrin levels were observed, suggesting that adult-onset citrullinemia type 2 (CTLN2) was not present. In addition, decreased argininosuccinate synthetase (ASS) levels were observed, and ASS1 gene, a causative gene for citrullinemia type 1 (CTLN1), was analyzed, but no gene mutations were found. Because the causes of hypercitrullinemia were not clear, it might be secondary to saccharopinuria. Muscle biopsy findings of the biceps brachii revealed diminished cytochrome c oxidase (COX) activity, mitochondrial abnormalities on electron microscopy and p62- positive structures in immunohistochemical analyses. Saccharopinuria is generally considered a benign metabolic variant, but our case showed elevated lysine and saccharopine levels causing ornithine circuit damage, mitochondrial dysfunction, and autophagy disorders. This may lead to so far unknown neurological disorders.
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Affiliation(s)
- Ryohei Norioka
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
- Address correspondence to:Ryohei Norioka, Department of Neurology, Tokyo Metropolitan Neurological Hospital, 2-6-1 Musashidai, Fuchu, Tokyo 183- 0042, Japan. E-mail:
| | - Shinsuke Tobisawa
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Ryusei Nishigori
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomiko Kuhara
- Japan Clinical Metabolomics Institute, Ishikawa, Japan
| | - Masahide Yazaki
- Neurohealth Innovation Division, Institute for Biomedical Sciences, Shinshu University, Matsumoto, Japan
| | - Masayoshi Nagao
- Department of Pediatrics, Hokkaido Medical Center, Hokkaido, Japan
| | - Toshihiro Ohura
- Division of Clinical Laboratory, Sendai City Hospital, Sendai, Japan
| | - Yasuyuki Takai
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Tokyo, Japan
| | - Asuka Funai
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Kazuhito Miyamoto
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Akihiro Kawata
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Kazushi Takahashi
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
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Sato M, Hirose K, Ichise K, Yoshino H, Harada T, Hatayama Y, Kawaguchi H, Tanaka M, Fujioka I, Takai Y, Aoki M. Not Only Hypoxia- but Radiation-Induced Epithelial-Mesenchymal Transition Is Modulated by Hypoxia-Inducible Factor 1 in A549 Lung Cancer Cells. Folia Biol (Praha) 2021; 67:62-69. [PMID: 34624938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Hypoxia leads to post-treatment metastasis and recurrences of cancer via the epithelial-mesenchymal transition (EMT). Radiotherapy itself may also contribute to the acquisition of EMT phenotypes. Despite extensive studies on the EMT driven by either hypoxia or radiation stimuli, the molecular mechanisms characterizing these EMT events remain unclear. Thus, we aimed to evaluate the differences in the molecular pathways between hypoxia-induced EMT (Hypo-EMT) and radiation-induced EMT (R-EMT). Further, we investigated the therapeutic effects of HIF-1α inhibitor (LW6) on Hypo-EMT and R-EMT cells. A549 cells, lung adenocarcinoma cell line, acquired enhanced wound-healing activity under both hypoxia and irradiation. Localization of E-cadherin was altered from the cell membrane to the cytoplasm in both hypoxia and irradiated conditions. Of note, the expression levels of vimentin, one of the major EMT markers, was enhanced in irradiated cells, while it decreased under hypoxia condition. Importantly, LW6 significantly blocked EMT-related malignant phenotypes in both Hypo-EMT cells and R-EMT cells with concomitant re-location of E-cadherin onto the cell membrane. Moreover, LW6 deflected stress responsive signalling, JNK, activated sustainably under hypoxic condition, and the blockage of JNK impaired EMT phenotypes. Together, this work demonstrated the molecular events underlying Hypo-EMT and R-EMT, and highlighted HIF-1α as a therapeutic target not only in Hypo- EMT, but also in R-EMT.
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Affiliation(s)
- M Sato
- Department of Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Japan
- Southern Tohoku BNCT Research Center, Yatsuyamada, Koriyama, Japan
- Department of Radiation Oncology, Southern Tohoku General Hospital, Yatsuyamada, Koriyama, Japan
| | - K Hirose
- Department of Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Japan
- Southern Tohoku BNCT Research Center, Yatsuyamada, Koriyama, Japan
- Department of Radiation Oncology, Southern Tohoku General Hospital, Yatsuyamada, Koriyama, Japan
| | - K Ichise
- Department of Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Japan
| | - H Yoshino
- Department of Radiation Science, Hirosaki University Graduate School of Health Sciences, Hon-cho, Hirosaki, Japan
| | - T Harada
- Southern Tohoku BNCT Research Center, Yatsuyamada, Koriyama, Japan
| | - Y Hatayama
- Department of Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Japan
| | - H Kawaguchi
- Department of Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Japan
| | - M Tanaka
- Department of Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Japan
| | - I Fujioka
- Department of Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Japan
| | - Y Takai
- Southern Tohoku BNCT Research Center, Yatsuyamada, Koriyama, Japan
- Department of Radiation Oncology, Southern Tohoku General Hospital, Yatsuyamada, Koriyama, Japan
| | - M Aoki
- Department of Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Japan
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16
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Takayanagi Y, Takai Y, Kaidzu S, Tanito M. Association between Systemic Antioxidant Capacity and Retinal Vessel Diameters in Patients with Primary-Open Angle Glaucoma. Life (Basel) 2020; 10:life10120364. [PMID: 33419272 PMCID: PMC7767320 DOI: 10.3390/life10120364] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/16/2020] [Accepted: 12/18/2020] [Indexed: 11/16/2022] Open
Abstract
The retinal vessel narrowing may be implicated in the pathogenesis of glaucoma; however, the association between systemic oxidative stress and retinal vessel diameter remains largely unknown. We examined the relationship between serum oxidative stress markers and retinal vessel diameters in eyes with primary open-angle glaucoma (POAG) and cataract, using central retinal artery equivalent (CRAE) and central retinal vein equivalent (CRVE). We included 66 eyes of 66 patients with POAG (37 men, 29 women; 65.4 ± 11.7 years) and 20 eyes of 20 patients with cataract (7 men, 13 women; 69.4 ± 9.0 years) as the controls. The CRAE (p < 0.0001), CRVE (p < 0.0001), and serum biological antioxidant potential (BAP) (p = 0.0419) were significantly lower in the POAG group compared to the controls. The BAP showed significant correlation both with CRAE (ρ = 0.2148, p = 0.0471) and systolic blood pressure (ρ = −0.2431, p = 0.0241), while neither Diacron reactive oxygen metabolites nor sulfhydryl test correlated with them. The multivariate analyses indicated that age, best corrected visual acuity, and BAP were independent factors for CRAE or CRVE. The present study suggested that lower systemic antioxidant capacity was significantly associated with the intraocular pressure-independent vascular narrowing in POAG patients. This study provided a novel insight into the pathophysiology of glaucoma and highlighted the clinical impact on systemic antioxidant treatment for patients with glaucoma.
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17
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Takayanagi Y, Takai Y, Kaidzu S, Tanito M. Evaluation of Redox Profiles of the Serum and Aqueous Humor in Patients with Primary Open-Angle Glaucoma and Exfoliation Glaucoma. Antioxidants (Basel) 2020; 9:E1305. [PMID: 33352680 PMCID: PMC7765903 DOI: 10.3390/antiox9121305] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/12/2020] [Accepted: 12/17/2020] [Indexed: 12/23/2022] Open
Abstract
Oxidative stress is thought to play a significant role in the development of glaucoma. However, the association between systemic and local oxidative stresses in different types of glaucoma has not been assessed fully. The current study compared the redox status in the aqueous humor (AH) and blood samples among eyes with primary open-angle glaucoma (POAG), exfoliation glaucoma (EXG), and non-glaucomatous controls to evaluate the relationship among systemic redox status, intraocular oxidative stress, and clinical backgrounds. AH and blood samples were obtained from 45 eyes of 45 Japanese subjects (15 POAG, 15 EXG, and 15 control eyes). The serum levels of lipid peroxides, ferric-reducing activity, and thiol antioxidant activity were measured by diacron reactive oxygen metabolites (dROM), biologic antioxidant potential (BAP), and sulfhydryl (SH) tests, respectively, using a free radical analyzer. The activities of cytosolic and mitochondrial forms of the superoxide dismutase (SOD) isoforms, i.e., SOD1 and SOD2, respectively, in AH and serum were measured using a multiplex bead immunoassay. In AH, SOD1 in subjects with EXG and SOD2 in those with POAG and EXG were significantly higher than in control eyes. In serum, compared to control subjects, BAP in subjects with POAG and EXG was significantly lower; SOD1 in those with EXG and SOD2 in those with POAG and EXG were significantly higher. dROM and SH did not differ significantly among the groups. The BAP values were correlated negatively with the SOD1 concentrations in AH and serum, SOD2 in the AH, intraocular pressure, and number of antiglaucoma medications. In conclusion, lower systemic antioxidant capacity accompanies up-regulation of higher local antioxidant enzymes, suggesting increased oxidative stress in eyes with OAG, especially in EXG. Determination of the systemic BAP values may help predict the redox status in AH.
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Affiliation(s)
| | | | | | - Masaki Tanito
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo 693-8501, Japan; (Y.T.); (Y.T.); (S.K.)
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18
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Tamura M, Takai Y, Nakamura S, Ohira A. A case report of pseudo-exfoliation syndrome with prolonged corneal epithelial regeneration because of erlotinib-induced unilateral corneal ulcer and anterior uveitis. Acta Ophthalmol 2020; 98:e1055-e1056. [PMID: 32483873 DOI: 10.1111/aos.14454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mayumi Tamura
- Department of Ophthalmology Masuda Red Cross Hospital Masuda Japan
| | - Yasuyuki Takai
- Department of Ophthalmology Shimane University Faculty of Medicine Graduate School of Medicine Izumo Japan
| | - Sayumi Nakamura
- Department of Ophthalmology Masuda Red Cross Hospital Masuda Japan
| | - Akihiro Ohira
- Shimane University Matsue Japan
- Graduate School of Biomedical Sciences Nagasaki University Nagasaki Japan
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19
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Takeda K, Umezawa R, Ishikawa Y, Yamamoto T, Takahashi N, Takeda K, Katagiri Y, Tasaka S, Kadoya N, Ito K, Katsuta Y, Tanaka S, Sato K, Matsushita H, Kawasaki Y, Mitsuduka K, Ito A, Arai Y, Takai Y, Jingu K. Clinical Predictors Of Severe Late Urinary Toxicity After Curative Intensity-Modulated Radiation Therapy For Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Umeno A, Tanito M, Kaidzu S, Takai Y, Yoshida Y. Involvement of free radical-mediated oxidation in the pathogenesis of pseudoexfoliation syndrome detected based on specific hydroxylinoleate isomers. Free Radic Biol Med 2020; 147:61-68. [PMID: 31852620 DOI: 10.1016/j.freeradbiomed.2019.12.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/28/2019] [Accepted: 12/12/2019] [Indexed: 01/19/2023]
Abstract
We reported previously that enzymatic and singlet oxygen-mediated fatty acid oxidation may be major oxidation pathways in subjects with primary open angle glaucoma, based on measurement of serum levels of hydroxylinoleate (HODE) and hydroxyarachidonate (HETE) isomers after reduction and saponification. In this study, we measured serum levels of HODE and HETE isomers to investigate the pathogenesis of exfoliation syndrome (EX). In total, 311 Japanese subjects comprising EX patients (n = 192) and non-glaucomatous control subjects (n = 119) were included in this study. Patients with EX (n = 192) were divided into EX with glaucoma (EXG) and EX without glaucoma (EXS) groups (n = 128 and n = 64, respectively) depending on the intraocular pressure. Total HODE (/linoleic acid) serum levels were significantly (p = 0.0426) higher in the EX group (202.7 ± 153.2 μmol/mol) than in the controls (167.1 ± 105.3 μmol/mol). Among the HODE isomers, the levels of 9-(E,E)-HODEs (p < 0.0001) and 13-(E,E)-HODEs (p < 0.0001), both free radical-mediated oxidation products, were higher in the EX and EXG groups than in the controls, whereas no significant difference was observed between EXS and controls. After adjusting for differences in demographic parameters, multivariate analyses confirmed the association between 9- and 13-(E,E)-HODEs and EX. This is the first report of a dramatic increase in free radical-mediated oxidation products related to the pathogenesis of EX, and our findings suggest that free radical-mediated oxidation can be one of the causes of deterioration in EX.
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Affiliation(s)
- Aya Umeno
- Health Research Institute, National Institute of Advanced Industrial Science and Technology, 2217-14 Hayashicho, Takamatsu, Kagawa, 761-0395, Japan; Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane, 693-8501, Japan
| | - Masaki Tanito
- Health Research Institute, National Institute of Advanced Industrial Science and Technology, 2217-14 Hayashicho, Takamatsu, Kagawa, 761-0395, Japan; Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane, 693-8501, Japan.
| | - Sachiko Kaidzu
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane, 693-8501, Japan
| | - Yasuyuki Takai
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane, 693-8501, Japan
| | - Yasukazu Yoshida
- Health Research Institute, National Institute of Advanced Industrial Science and Technology, 2217-14 Hayashicho, Takamatsu, Kagawa, 761-0395, Japan
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21
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Hirose K, Konno A, Yoshimoto S, Ono K, Otsuki N, Hatazawa J, Hiratsuka J, Takai Y. Updated results of a phase II study evaluating accelerator-based boron neutron capture therapy (AB-BNCT) with borofalan(10B) (SPM-011) in recurrent squamous cell carcinoma (R-SCC-HN) and recurrent and locally advanced non-SCC (R/LA-nSCC-HN) of the head and neck. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz252.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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22
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Tsujinaka A, Takai Y, Inoue Y, Tanito M. A case of bilateral deep stromal corneal opacity and vascularization after use of multiple antiglaucoma medications including brimonidine tartrate ophthalmic solution. Acta Ophthalmol 2019; 97:e948-e949. [PMID: 30609169 DOI: 10.1111/aos.14008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aika Tsujinaka
- Department of Ophthalmology Faculty of Medicine Shimane University Izumo Japan
| | - Yasuyuki Takai
- Department of Ophthalmology Faculty of Medicine Shimane University Izumo Japan
| | - Yoshitsugu Inoue
- Division of Ophthalmology and Visual Science Faculty of Medicine Tottori University Yonago Japan
| | - Masaki Tanito
- Department of Ophthalmology Faculty of Medicine Shimane University Izumo Japan
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23
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Tanito M, Manabe K, Mochiji M, Takai Y, Matsuoka Y. Comparison of anterior chamber flare among different glaucoma surgeries. Clin Ophthalmol 2019; 13:1609-1612. [PMID: 31686774 PMCID: PMC6709819 DOI: 10.2147/opth.s219715] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/13/2019] [Indexed: 11/25/2022] Open
Abstract
Purpose To compare postsurgical anterior chamber flare (ACF) among conventional (trabeculectomy, LEC) and novel (EX-PRESS Shunt, EXP) filtration surgeries and microhook ab interno trabeculotomy (μLOT), a novel minimally invasive glaucoma surgery (MIGS). Subjects and methods This retrospective study included 125 primary open angle glaucoma eyes (89 consecutive subjects) treated with μLOT (n=38), LEC (n=12), or EXP (n=75). The intraocular pressure (IOP), numbers of antiglaucoma medication, and ACF at preoperatively and 2 weeks; 1, 3, and 6 months postoperatively were compared among the surgical groups using a mixed-effects regression model. Results The postoperative IOP (p<0.0001) and medication use were significantly (p<0.0001) lower in the LEC and EXP groups than with μLOT for up to 6 months postoperatively. The ACF differed significantly (p=0.0004) among groups; the ACF was significantly higher (p=0.0097, post-hoc Student’s t-test) with μLOT (33.6±52.8 pc/msec) than the EXP (15.7±19.9 pc/msec) at 2 weeks and was significantly (p=0.0111, post-hoc t-test) lower with μLOT (7.9±2.0 pc/msec) than LEC (12.0±6.1 pc/msec) at 6 months. Conclusion Considering our observation, although its clinical significance is unclear, not all MIGS are minimally invasive regarding early postsurgical inflammation.
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Affiliation(s)
- Masaki Tanito
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo, Japan.,Division of Ophthalmology, Matsue Red Cross Hospital, Matsue, Japan
| | - Kaoru Manabe
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo, Japan
| | - Mihoko Mochiji
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo, Japan
| | - Yasuyuki Takai
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo, Japan
| | - Yotaro Matsuoka
- Division of Ophthalmology, Matsue Red Cross Hospital, Matsue, Japan
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Nakano Y, Isobe K, Kakimoto A, Kobayashi H, Kaburaki K, Sano G, Sakamoto S, Takai Y, Tochigi N, Mikami T, Iyoda A, Homma S. Survival effect of lncRNA-X expression in EGFR-mutant adenocarcinoma. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy304.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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Ichiji K, Yoshida Y, Homma N, Zhang X, Bukovsky I, Takai Y, Yoshizawa M. A key-point based real-time tracking of lung tumor in x-ray image sequence by using difference of Gaussians filtering and optical flow. ACTA ACUST UNITED AC 2018; 63:185007. [DOI: 10.1088/1361-6560/aada71] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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26
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Sugihara K, Tanito M, Takai Y, Ohira A. Causes of intracapsular cataract extraction, explantation of intraocular lenses and suture scleral fixation of intraocular lenses in the modern era. Acta Ophthalmol 2018; 96:e262-e263. [PMID: 29098792 DOI: 10.1111/aos.13579] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Kazunobu Sugihara
- Department of Ophthalmology; Shimane University Faculty of Medicine; Izumo Japan
| | - Masaki Tanito
- Department of Ophthalmology; Shimane University Faculty of Medicine; Izumo Japan
- Division of Ophthalmology; Matsue Red Cross Hospital; Matsue Japan
| | - Yasuyuki Takai
- Department of Ophthalmology; Shimane University Faculty of Medicine; Izumo Japan
| | - Akihiro Ohira
- Department of Ophthalmology; Shimane University Faculty of Medicine; Izumo Japan
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27
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Isobe K, Kaburaki K, Kobayashi H, Sano G, Sugino K, Sakamoto S, Takai Y, Makino T, Tochigi N, Iyoda A, Homma S. P2.01-010 Risk Score for Predicting Acute Exacerbation after Chemotherapy in Lung Cancer Associated with Interstitial Pneumonia. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Takai Y, Misu T, Nishiyama S, Kuroda H, Kaneko K, Ogawa R, Takahashi T, Ichiro N, Suzuki H, Kazuo F, Masashi A. The staging of astrocytopathy in aquaporin 4-igg-positive neuromyelitis optica spectrum disorders. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Onishi H, Nagata Y, Hiraoka M, Wakabayashi M, Eba J, Ishikura S, Kokubo M, Karasawa K, Shioyama Y, Onimaru R, Kozuka T, Kunieda E, Saito T, Nakagawa K, Hareyama M, Takai Y, Hayakawa K, Mitsuhashi N. Radiation Pneumonitis and Change of Pulmonary Function after Stereotactic Body Radiotherapy for T1N0M0 Non-Small Cell Lung Cancer and Their Impact on Survival in a Supplementary Analysis of Japan Clinical Oncology Group (JCOG) Study JCOG0403. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ogawa R, Nakashima I, Takahashi T, Kaneko K, Akaishi T, Takai Y, Sato D, Nishiyama S, Fujimori J, Misu T, Kuroda H, Ikeda T, Uchibori A, Ohashi T, Fujihara K, Aoki M. Autoimmune encephalitis in patients with anti-myelin oligodendrocyte glycoprotein-antibody. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kaneko K, Sato D, Ogawa R, Akaishi T, Takai Y, Nishiyama S, Takahashi T, Misu T, Kuroda H, Nakashima I, Kazuo F, Aoki M. Efficacy of Interferon-β for myelin oligodendrocyte glycoprotein antibody-positive demyelinating disorder. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hatayama Y, Aoki M, Kawaguchi H, Hirose K, Sato M, Akimoto H, Tanaka M, Fujioka I, Ichise K, Ono S, Takai Y. Clinical Results of Accelerated Hypofractionated Radiotherapy for Central-Type Small Lung Tumours. Curr Oncol 2017; 24:e285-e289. [DOI: 10.3747/co.24.3500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Purpose: We evaluated the efficacy and toxicity of accelerated hypofractionated radiotherapy (AHYPOF-RT) for central-type small lung tumours. Methods: Between November 2006 and January 2015, 40 patients with central-type small lung tumours underwent AHYPOF-RT delivered using 10 MV X-rays and a coplanar 3-field technique. The number of fractions ranged from 24 to 28, with a fraction size of 2.5–3 Gy. A total dose of 69–75 Gy to the isocentre of the planning target volume was administered to each patient. Cumulative survival and local control rates were calculated using the Kaplan–Meier method. Results: The 27 men and 13 women enrolled in the study had a median age of 79 years (range: 60−87 years). The tumour stage was T1a in 9 patients, T1b in 17 patients, and T2a in 14 patients, with a median size of 26.5 cm (range: 11–49 cm). The median follow-up period was 23 months. A complete response was achieved in 3 patients (7.5%), and a partial response, in 17 patients (42.5%). The overall 2-year and 3-year local control rates were 87.3% and 81.8% respectively; the 2-year and 3-year overall survival rates were 78.9% and 66.7% respectively. Grade 3 pneumonitis occurred in 3 patients; no other severe adverse events (≥grade 3) were observed in any patient. Conclusions: Accelerated hypofractionated radiotherapy using a fraction size of 2.5–3 Gy was highly safe and can be a more effective treatment option than conventional radiotherapy for patients with central-type small lung tumours.
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Hirose K, Arai K, Motoyanagi T, Harada T, Shimokomaki R, Kato T, Takai Y. EP-1436: A newly designed water-equivalent bolus technique enables BNCT application to skin tumor. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31871-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kitayama M, Mizutani K, Maruoka M, Suzuki H, Takai Y, Komori T. Functional analysis of nectins in mouse submandibular glands. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hirose K, Aoki M, Sato M, Akimoto H, Hatayama Y, Kawaguchi H, Hashimoto Y, Imai A, Kamimura N, Fujioka I, Tanaka M, Ohyama C, Takai Y. A Retrospective Analysis of the Relationship Between Prescribed Dose and Dosimetric Advantage Taken by Intraoperative Built Custom Linked Seeds in Iodine-125 Prostate Brachytherapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hatayama Y, Aoki M, Kawaguchi H, Hirose K, Sato M, Akimoto H, Takai Y. Preliminary Results of Accelerated Hypofractionated Radiation Therapy for Small Central Lung Tumors. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Aoki M, Akimoto H, Sato M, Hirose K, Kawaguchi H, Hatayama Y, Fujioka I, Tanaka M, Ono S, Takai Y. Impact of Pretreatment Whole-Tumor Perfusion Computed Tomography and 18f-Fluorodeoxyglucose Positron Emission Tomography Measurements on Local Control of Lung Tumor Treated With Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yoshizako H, Hara K, Takai Y, Kaidzu S, Obana A, Ohira A. Comparison of macular pigment and serum lutein concentration changes between free lutein and lutein esters supplements in Japanese subjects. Acta Ophthalmol 2016; 94:e411-6. [PMID: 27273910 DOI: 10.1111/aos.13106] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 03/30/2016] [Indexed: 01/06/2023]
Abstract
PURPOSE To compare changes in macular pigment optical density (MPOD) and serum lutein concentration between free lutein and lutein esters supplements in healthy Japanese individuals. METHODS Twenty healthy subjects (age range, 22-47 years) were recruited into this prospective, randomized, doubled-blind comparative study. Individuals were evenly divided into two groups: free lutein group, supplementation with 10 mg of free lutein; or lutein esters group, supplementation with 20 mg of lutein esters equivalent to 10 mg of free lutein. Each participant took either type of oral lutein daily for 3 months. The serum lutein concentrations and MPOD levels were measured at baseline and 3 and 6 months after the start of supplementation. RESULTS There were no significant differences in the serum lutein concentrations and MPOD levels at baseline between the groups. The increased serum lutein concentration and MPOD levels at 3 months were respectively, 89% and 38% in the free lutein group and 97% and 17% in the lutein esters group. The serum lutein concentrations in both groups and MPOD levels in the free lutein group increased significantly (p < 0.05) from baseline. No significant differences in serum lutein concentrations and MPOD levels were seen between the groups. Three months after supplementation ended, the serum lutein concentration decreased; the MPOD remained elevated in both groups. CONCLUSIONS The serum lutein concentrations and MPOD levels increased significantly with either free lutein or lutein esters, and no significant differences were found between the two. Both were considered useful as lutein supplements.
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Affiliation(s)
- Hiroko Yoshizako
- Department of Ophthalmology; Shimane University School of Medicine; Izumo Shimane Japan
| | - Katunori Hara
- Department of Ophthalmology; Shimane University School of Medicine; Izumo Shimane Japan
| | - Yasuyuki Takai
- Department of Ophthalmology; Shimane University School of Medicine; Izumo Shimane Japan
| | - Sachiko Kaidzu
- Department of Ophthalmology; Shimane University School of Medicine; Izumo Shimane Japan
| | - Akira Obana
- Seirei Hamamatsu General Hospital; Ophthalmology; Hamamatsu Shizuoka Japan
| | - Akihiro Ohira
- Department of Ophthalmology; Shimane University School of Medicine; Izumo Shimane Japan
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Kawasaki T, Ishida T, Takai Y, Ogawa Y, Tomita M, Matsutani T, Kodama T, Ikuta T. Development of electrostatic spherical aberration corrector using annular and circular electrodes. SURF INTERFACE ANAL 2016. [DOI: 10.1002/sia.6131] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tadahiro Kawasaki
- Nanostructures Research Laboratory; Japan Fine Ceramics Center; 2-4-1, Mutsuno, Atsuta-ku Nagoya 456-8587 Japan
- Institute of Materials and Systems for Sustainability; Nagoya University; Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Takafumi Ishida
- Institute of Materials and Systems for Sustainability; Nagoya University; Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Yasuyuki Takai
- Graduate School of Science and Technology; Meijo University; 1-501, Shiogamaguchi, Tenpaku-ku Nagoya 468-8502 Japan
| | - Yuki Ogawa
- Graduate School of Science and Technology; Meijo University; 1-501, Shiogamaguchi, Tenpaku-ku Nagoya 468-8502 Japan
| | | | - Takaomi Matsutani
- Faculty of Science and Engineering; Kinki University; 3-4-1Higashiosaka Osaka 577-8502 Japan
| | - Tetsuji Kodama
- Graduate School of Science and Technology; Meijo University; 1-501, Shiogamaguchi, Tenpaku-ku Nagoya 468-8502 Japan
| | - Takashi Ikuta
- Faculty of Engineering; Osaka Electro-Communication University; 18-8 Hatsu-cho Neyagawa 572-8530 Japan
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Hirose K, Sato M, Hatayama Y, Kawaguchi H, Aoki M, Akimoto H, Komai F, Souma M, Obara H, Suzuki M, Takai Y. SU-F-J-131: Reproducibility of Positioning Error Due to Temporarily Indwelled Urethral Catheter for Urethra-Sparing Prostate IMRT. Med Phys 2016. [DOI: 10.1118/1.4956039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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41
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Uchida T, Kadoya N, Ichiji K, Nakajima Y, Jingu K, Osanai M, Takeda K, Takai Y, Homma N. SU-G-BRA-15: Dosimetric Evaluation of Dynamic Tumor Tracking Radiation Therapy Using Digital Phantom: A Study On Margin and Desired Accuracy of Tracking. Med Phys 2016. [DOI: 10.1118/1.4956939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Hirose K, Sato M, Aoki M, Kawaguchi H, Akimoto H, Hatayama Y, Takai Y. How Can We Overcome Radiation Induced Recruitment of Cancer Stem Cells Under Chronic Hypoxia: Contribution of Fraction Dose Size As a Key Factor. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sugihara K, Tanito M, Takai Y, Ohira A. Case series of pseudoexfoliation material on intra-ocular lenses. Acta Ophthalmol 2015; 93:e596-7. [PMID: 25728827 DOI: 10.1111/aos.12637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kazunobu Sugihara
- Department of Ophthalmology; Shimane University Faculty of Medicine; Izumo Japan
| | - Masaki Tanito
- Department of Ophthalmology; Shimane University Faculty of Medicine; Izumo Japan
- Division of Ophthalmology; Matsue Red Cross Hospital; Matsue Japan
| | - Yasuyuki Takai
- Department of Ophthalmology; Shimane University Faculty of Medicine; Izumo Japan
| | - Akihiro Ohira
- Department of Ophthalmology; Shimane University Faculty of Medicine; Izumo Japan
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Monzen S, Mariya Y, Nakamura A, Kawamura C, Taira K, Chiba M, Takai Y. Cytogenetic dosimetry by micronucleus assay using peripheral blood cells is modified by thyroid hormones. Radiat Prot Dosimetry 2015; 167:321-325. [PMID: 25948836 DOI: 10.1093/rpd/ncv271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Cytokinesis-block micronucleus (CBMN) assay is a convenient and easy method of radiation biodosimetry that uses peripheral blood (PB) cells. However, for micronuclei (MN) frequency induced by ionising radiation, a dose-response relationship in abnormal condition, such as in cancer patients, has not been assessed. To clarify the difference between the dose-response curve generated by the CBMN assay in conditions when thyroid hormone levels were normal and during thyroid hormone withdrawal (THW) prior to (131)I treatment, 12 thyroid cancer patients who underwent thyroidectomy were studied. The collected PB mononuclear cells were exposed to 0.5-3.0 Gy X-ray irradiation. Under normal conditions, dose dependency and independency of MN frequency were observed in 92 % and 8 %, respectively. In contrast, during THW, the number of patients who showed dose independency significantly increased to 42 % in comparison with control. Furthermore, a higher concentration of serum thyroglobulin in dose-independent patients was observed. These results suggest that MN frequency in cytogenetic dosimetry is affected by thyroid hormones.
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Affiliation(s)
- S Monzen
- Department of Radiological Life Sciences, Division of Medical Life Sciences, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori, Japan
| | - Y Mariya
- Department of Radiological Life Sciences, Division of Medical Life Sciences, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori, Japan
| | - A Nakamura
- Department of Radiological Life Sciences, Division of Medical Life Sciences, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori, Japan
| | - C Kawamura
- Department of Radiological Life Sciences, Division of Medical Life Sciences, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori, Japan
| | - K Taira
- Department of Radiological Life Sciences, Division of Medical Life Sciences, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori, Japan
| | - M Chiba
- Department of Radiological Life Sciences, Division of Medical Life Sciences, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori, Japan
| | - Y Takai
- Department of Radiology and Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Japan
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Aoki M, Takai Y, Hirose K, Sato M, Kawaguchi H, Akimoto H, Hatayama Y, Ono S. Prognostic Significance of Average Iodine Density Assessed by Dual-Energy Spectral Imaging for Predicting Lung Tumor Recurrence after Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Tayashiki K, Takai Y, Maeo S, Kanehisa H. Intra-abdominal Pressure and Trunk Muscular Activities during Abdominal Bracing and Hollowing. Int J Sports Med 2015; 37:134-43. [DOI: 10.1055/s-0035-1559771] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- K. Tayashiki
- National Institute of Fitness and Sports in Kanoya, Sport and Life Science, Kanoya, Japan
| | - Y. Takai
- National Institute of Fitness and Sports in Kanoya, Sport Performance, Kanoya-shi, Japan
| | - S. Maeo
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan
| | - H. Kanehisa
- National Institute of Fitness and Sports in Kanoya, Sport Performance, Kanoya-shi, Japan
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Hatayama Y, Nakamura T, Suzuki M, Azami Y, Ono T, Yamaguchi H, Hayashi Y, Tsukiyama I, Hareyama M, Kikuchi Y, Takai Y. Preliminary results of proton-beam therapy for stage III non-small-cell lung cancer. Curr Oncol 2015; 22:e370-5. [PMID: 26628878 PMCID: PMC4608411 DOI: 10.3747/co.22.2523] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND We conducted a preliminary retrospective evaluation of the efficacy and toxicity of proton-beam therapy (pbt) for stage iii non-small-cell lung cancer. METHODS Between January 2009 and August 2013, 27 patients (26 men, 1 woman) with stage iii non-small-cell lung cancer underwent pbt. The relative biologic effectiveness value of the proton beam was defined as 1.1. The beam energy and spread-out Bragg peak were fine-tuned such that the 90% isodose volume of the prescribed dose encompassed the planning target volume. Of the 27 patients, 11 underwent neoadjuvant chemotherapy. Cumulative survival curves were calculated using the Kaplan-Meier method. Treatment toxicities were evaluated using version 4 of the Common Terminology Criteria for Adverse Events. RESULTS Median age of the patients was 72 years (range: 57-91 years), and median follow-up was 15.4 months (range: 7.8-36.9 months). Clinical stage was iiia in 14 patients (52%) and iiib in 13 (48%). The median dose of pbt was 77 GyE (range: 66-86.4 GyE). The overall survival rate in the cohort was 92.3% at 1 year and 51.1% at 2 years. Locoregional failure occurred in 7 patients, and distant metastasis, in 10. In 2 patients, initial failure was both locoregional and distant. The 1-year and 2-year rates of local control were 68.1% and 36.4% respectively. The 1-year and 2-year rates of progression-free survival were 39.9% and 21.4% respectively. Two patients experienced grade 3 pneumonitis. CONCLUSIONS For patients with stage iii non-small-cell lung cancer, pbt can be an effective and safe treatment option.
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Affiliation(s)
- Y. Hatayama
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - T. Nakamura
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - M. Suzuki
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Y. Azami
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - T. Ono
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - H. Yamaguchi
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Y. Hayashi
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - I. Tsukiyama
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - M. Hareyama
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Y. Kikuchi
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Y. Takai
- Department of Radiology and Radiation Oncology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Hirose K, Sato M, Aoki M, Kawaguchi H, Akimoto H, Hatayama Y, Komai F, Sohma M, Obara H, Suzuki M, Takai Y. SU-E-J-40: Improving Uncertainty of Prostate Positioning by Using Implanted Fiducial Marker-Based Hybrid Evaluation Combined with KV Portal Imaging and CBCT for Prostate IMRT. Med Phys 2015. [DOI: 10.1118/1.4924127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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49
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Zhang X, Homma N, Takai Y, Ichiji K, Sugita N, Abe M, Yoshizawa M. WE-AB-303-02: A Real-Time Homography-Based Algorithm for Markerless Deformable Lung Tumor Motion Tracking Using KV X-Ray Fluoroscopy. Med Phys 2015. [DOI: 10.1118/1.4925867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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50
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Tanito M, Hara K, Akahori M, Harata A, Itabashi T, Takai Y, Kaidzu S, Ohira A, Iwata T. Lack of association of LOXL1 gene variants in Japanese patients with central retinal vein occlusion without clinically detectable pseudoexfoliation material deposits. Acta Ophthalmol 2015; 93:e214-7. [PMID: 25130441 DOI: 10.1111/aos.12534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 07/10/2014] [Indexed: 12/23/2022]
Abstract
PURPOSE A possible association has been reported between exfoliation syndrome (EX) and various ocular and systemic vascular disorders; however, it is unclear if there is an association between EX and central retinal vein occlusion (CRVO). Because latent deposits of exfoliation materials might not be recognized during slit-lamp examination, an ocular biopsy is required to establish a precise diagnosis. We evaluated a possible association between EX and CRVO using lysyl oxidase-like 1 (LOXL1) gene variants as alternative markers for EX. METHODS The allelic and genotypic frequencies of three LOXL1 variants (rs1048661, rs3825942, and rs2165241) were determined in 68 consecutive Japanese patients with CRVO [15 with exfoliation syndrome (EX+) and 53 without exfoliation syndrome (EX-)] and 90 control patients with cataract without EX (CT). RESULTS The frequencies of the rs1048661 and rs3825942 variants showed borderline difference between the CRVO and CT groups (p = 0.04085 and p = 0.06088, respectively, for allelic frequencies, and p = 0.06838 and p = 0.03482, respectively, for genotypic frequencies). Compared with the CT group, subgroup analysis showed that the CRVO EX+ group had significant differences in the allelic and genotypic frequencies of rs1048661 (p = 0.0006447 and p = 0.0001392, respectively) and had borderline differences in the allelic and genotypic frequencies of rs3825942 (p = 0.03403 and p = 0.07341, respectively), while the CRVO EX- group did not (p = 0.1324-0.6306). Subgroup analysis showed that the frequencies of rs2165241 did not differ between the CRVO and CT groups. CONCLUSIONS When the LOXL1 variants were used as disease markers for clinically undetectable EX, there was no association between CRVO and EX. The results suggested that the LOXL1 variants, which are well-established markers for EX, are not likely genetic markers for CRVO in Japanese subjects.
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Affiliation(s)
- Masaki Tanito
- Shimane University Faculty of Medicine Izumo Shimane Japan
- Division of Ophthalmology Matsue Red Cross Hospital Matsue Shimane Japan
| | - Katsunori Hara
- Shimane University Faculty of Medicine Izumo Shimane Japan
| | - Masakazu Akahori
- National Institute of Sensory Organs National Hospital Organization Tokyo Medical Center Tokyo Japan
| | - Ayano Harata
- National Institute of Sensory Organs National Hospital Organization Tokyo Medical Center Tokyo Japan
| | - Takeshi Itabashi
- National Institute of Sensory Organs National Hospital Organization Tokyo Medical Center Tokyo Japan
| | - Yasuyuki Takai
- Shimane University Faculty of Medicine Izumo Shimane Japan
| | - Sachiko Kaidzu
- Shimane University Faculty of Medicine Izumo Shimane Japan
| | - Akihiro Ohira
- Shimane University Faculty of Medicine Izumo Shimane Japan
| | - Takeshi Iwata
- National Institute of Sensory Organs National Hospital Organization Tokyo Medical Center Tokyo Japan
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